Placing Cuttings In Propagation Trays Or Misting Systems

Anne-Marie Irugalbandara
June 18, 2023
5 min read
https://www.future1st.com.au/post/placing-cuttings-in-propagation-trays-or-misting-systems

Placing Cuttings in Propagation Trays or Misting Systems

Starting new plants from cuttings is like giving nature a helping hand. If you are a horticulture trainee, you will find yourself working with propagation trays and misting systems quite often, especially in a wholesale production nursery. These methods create the perfect conditions for young plants to develop strong roots.

In this guide, we will walk you through the process of placing cuttings properly so they have the best chance to grow. Whether you are working with delicate ornamental plants or hardy shrubs, getting the basics right makes all the difference.

Why Propagation Trays and Misting Systems Matter

When plants grow naturally, seeds scatter and take their time sprouting. But in a wholesale production nursery, waiting for seeds to sprout and mature is not always practical. That is where propagation comes in.

Using propagation trays and misting systems speeds up the process. These systems give cuttings the humidity and moisture they need without drowning them. If you have ever tried to grow a plant at home and ended up with a sad, shriveled twig, you know how important the right conditions are.

Getting Ready: What You Need Before Placing Cuttings

Before you start handling cuttings, you need the right setup. Think of it like baking a cake—you need the right ingredients and tools for it to turn out well.

1. Selecting Healthy Cuttings

  • Choose cuttings from strong, disease-free plants.
  • The best cuttings come from fresh growth that is not too soft or too woody.
  • Cut at a 45-degree angle to allow better water absorption.

2. Preparing the Propagation Tray

  • Use trays with drainage holes to prevent waterlogging.
  • Fill the trays with a light, well-draining propagation mix. A mix of peat and perlite works well.
  • Press the soil lightly to create a firm base for the cuttings.

3. Setting Up the Misting System

  • A misting system keeps humidity high without soaking the cuttings.
  • Make sure the misting nozzles are working properly.
  • The system should mist frequently enough to keep cuttings moist but not dripping wet.

Placing Cuttings in Propagation Trays

Now comes the fun part—actually placing the cuttings in the tray. This step requires patience and a little bit of a gentle touch.

1. Dipping Cuttings in Rooting Hormone

  • Rooting hormone encourages cuttings to develop roots faster.
  • Dip the cut end into the powder or gel. A light coating is enough.
  • Tap off the excess to prevent clogging.

2. Inserting Cuttings into the Soil

  • Make a hole in the soil with a dibber (or just use your finger).
  • Place the cutting about one-third into the soil.
  • Press the soil gently around the cutting to keep it upright.

3. Spacing Matters

  • Do not overcrowd the tray. Cuttings need airflow to prevent disease.
  • Keep a small gap between each cutting to allow room for root growth.

Using Misting Systems for Better Growth

Misting is like giving your cuttings a refreshing spritz to keep them from drying out. It is an important part of propagation, especially in a wholesale production nursery where hundreds of cuttings are managed at once.

1. Setting the Right Mist Frequency

  • Too much misting can lead to fungal issues. Too little can cause dehydration.
  • A general rule is to mist every 5–15 minutes during the day and reduce frequency at night.

2. Checking for Proper Drainage

  • Water should not pool at the bottom of the tray.
  • If the soil feels soggy, adjust misting intervals.

3. Keeping the Humidity High

  • If you are not using a misting system, covering the tray with a plastic dome can help retain moisture.
  • Just be sure to ventilate occasionally to prevent mold.

Caring for Cuttings After Placement

Once the cuttings are in their trays, they need ongoing care. Do not just set them up and forget about them.

1. Watching for Root Growth

  • After about two weeks, gently tug on a cutting to check for resistance. If it holds firm, roots are forming.
  • Once roots are well established, the cuttings are ready for transplanting.

2. Avoiding Common Problems

  • Wilting – Increase misting frequency or check for dry soil.
  • Rotting – Reduce misting and improve airflow.
  • Mold or fungus – Remove affected cuttings and space them better.

Transplanting the Rooted Cuttings

When cuttings develop strong roots, they need a bigger home. Transplanting is the final step before they become fully grown plants.

1. Preparing the New Pot or Bed

  • Use nutrient-rich soil to help young roots settle in.
  • If moving them outdoors, introduce them slowly to avoid transplant shock.

2. Watering After Transplanting

  • Newly transplanted cuttings need consistent moisture.
  • Water deeply but allow time for the soil to drain.

Final Thoughts

Placing cuttings in propagation trays or misting systems is a rewarding process. Whether you are a horticulture trainee or working in a wholesale production nursery, getting the technique right will set you up for success. By following these steps, you give young plants the best chance to grow strong and healthy.

Now, roll up your sleeves and get your hands in the soil—it is time to grow something amazing!

Frequently Asked Questions

1. How long does it take for cuttings to root in a propagation tray?
Most cuttings take 2–6 weeks to root, depending on the plant species and environmental conditions.

2. What is the best soil mix for propagation trays?
A mix of peat and perlite provides good drainage and moisture retention.

3. Can I place cuttings directly into water instead of soil?
Yes, some plants root well in water, but they may struggle when transferred to soil.

4. Why are my cuttings wilting even with a misting system?
They may not be getting enough moisture, or they could be receiving too much direct sunlight.

5. When should I transplant my cuttings?
Transplant once they develop strong roots and can withstand a gentle tug without coming loose.

Future1st is proud to be a member of Nursery & Garden Industry Victoria (NGIV), the peak body for horticulture in Victoria. This membership strengthens our commitment to industry best practices, innovation, and sustainability in the horticultural sector.

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Anne-Marie Irugalbandara
11 Jan 2022
5 min read
https://www.future1st.com.au/post/placing-cuttings-in-propagation-trays-or-misting-systems